| 贵阳城市土壤重金属元素形态分析 |
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| 引用本文： | 武永锋,刘丛强,涂成龙.贵阳城市土壤重金属元素形态分析[J].矿物学报,2008,28(2):177-180. |
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| 作者姓名： | 武永锋 刘丛强 涂成龙 |
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| 作者单位： | 1. 中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵阳,550002;中国科学院,研究生院,北京,100049
2. 中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵阳,550002 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 选取贵阳市62个代表性的表层土壤样品,分析了其重金属元素的含量和存在形态.结果表明,贵阳城市土壤中5种重金属元素(Cr、Cu、Pb、Zn和Cd)的含量较高,且变化较大.表层土壤中Cr、Cu、Zn主要以残渣态形式存在,Pb主要以可氧化态形式存在.Cd可还原态含量高达47.5%,残渣态含量最低,说明Cd较活泼,具有潜在的环境影响能力.
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| 关 键 词： | 土壤 重金属 形态分析 贵阳 |
| 文章编号： | 1000-4734(2008)02-0177-04 |
| 修稿时间： | 2006年8月12日 |
SPECIATION OF HEAVY METALS IN URBAN SOIL AT GUIYANG |
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| WU Yong-feng,LIU Cong-qiang,TU Cheng-long.SPECIATION OF HEAVY METALS IN URBAN SOIL AT GUIYANG[J].Acta Mineralogica Sinica,2008,28(2):177-180. |
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| Authors: | WU Yong-feng LIU Cong-qiang TU Cheng-long |
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| Abstract: | This paper described the speciation of heavy metals in sixty-two urban topsoil samples from Guiyang City,and the total concentrations of heavy metals were analyzed.The results indicated that the concentrations of Cr,Cu,Pb,Zn and Cd in urban soil at Guiyang are higher and vary significantly.Cr,Cu and Zn are present mainly in the residual fraction,and Pb is present mainly in the oxidizable fraction.The reducible fraction of Cd accounts for 47.5%,and the residual fraction is lowest.This shows that Cd is more active and has a potential impact on the environment. |
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| Keywords: | soil heavy metal speciation Guiyang City |
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